Is it OK to just build the kernel?

From:

Pierre Abbat <phma@xxxxxxxxxxxxx>

Date:

Thu, 26 Jan 2012 03:00:30 -0500

I pulled the latest to fix the setitimer bug and made quickworld. While I was
doing that, the kernel panicked (though it may have been caused by some web
browsing). I resumed quickworld, but I got an error, so I'm making buildworld.
If that fails, is it OK to build and install just the kernel, reboot, and
build the world? The current kernel and world I'm running are from a week or
two ago, but it looks like the entire C library has to be rebuilt.
Pierre
--
La sal en el mar es más que en la sangre.
Le sel dans la mer est plus que dans le sang.